Car-roof.



PATENTED AUG. 11, 1908. F. B. BRANSON & A. c. NAVE.

CAR ROOF. ,AIPPLIUATIOK FILED OCT.1, 1901- 2 SHEETS-SHEET 2.

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FRANK B. BRANSON AND ARLEIGH c. NAVE, or PAWNEE, 'LoUrsIn'a- To all whom it may concern:

Be. it known that we, FRANK B. BRANSOX and ARLEIGn (3. Have, citizens of the United States, residing at Pawnee, in the arish of Calcasieu and State of Louisiana, ave invented certain new and usefni Improvements in Car-Roofs; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the sam Our invention relates to new and useful improvements in roof construction, and

more particularly to that class adapted to be used for forming box car roofs, and our object is to provide means for preventing leakage between the sections forming the roof.

A still further object is to prevent the sections forming the roof from warping, and a still further object is to provide means for reventing the nails or the like used in securmg the parts of the roof together, from being drawn out by expansion.

Other objects and advantages will be here inafter referred to and more particularly pointed out in the claims.

In the accom anying drawin s which are made a part of t iis application, l igure 1, is a perspective view of a portion of a roof showmg our improved met 10d of constructing the same. Fig. '2, is a transverse sectional view through the section of the roof. Fig. 3, is a sectional View as seen on line. 3-3 of Fig. 2, and Fig. 4, is aperspective view of one of the sections employed in constriu-ting the roof.

Referring to the drawings in which similar reference numerals designate corresponding parts throughout the several views, 1 indicates the rafters such as are commonly em- 40 ploycd in connection with the roofs of box cars, and 2 indicates sheeting, the strips of sheeting being extended laterally across the rafters and are secured thereto in any preferred manner, said sheeting being employed for supporting our improved form of roofing sections 3.

The u per surfaces of the sections 3 are. provide with longitudinally disposed gutters 4, while one edge of the section 3 is provided with a tongue 5, and the opposite edge thereof with agroove 6 so that when the sections are laced together the tongue of one section wi 1 enter the .roove of the next succeedingsection, and in order to render the .55 joints thus formed water-proof the upper Specification of Letters Patent. Application flied October 1, 1907. Serial No. 395,312.

Patented Aug. .11, 1908.

ortion of that edge containing the groove 6 1s provided with a lip 7, and the upper portion of'that edge of the section 3 containing the tongue 5 is'removed to form a seat 8 for the lip 7, the inner end ofthe seat 8 and the free end of the lip 7 being formed at an angle so that a portion of the end wall 9 of the seat' 8 will overhang the tapered edge 10 of the lip 7, thereby forming a lock for the edge of the lip and preventing the same from warping. A gutter 1 1 is also placed in the upper face of the. seat 8 so that should the water in any manner ass between the ends of the seat and lip t 1e gutter 11 would catch the water and revent the same from a:\ ing to the interior of the car between t 1e ton ue and groove, thereby renderingthe joints between. the several sections Water-proof.

The several sections 3 employed in forming the roof are secured in osition on the sheeting by driving nails 12 t irough the sections and into the sheeting, and owing to the interlocking edges of the sections, said sections maybe secured together by placing the nails at the longitudinal center and each end of the sections, there being preferably two rows of nails at the center and each end of the sections, and in order to irev'ent the nails from being withdrawn by the action of the suns rays on the roof or in any other manner we provide metallic stri s 13 which are of suflicient width to extem over the two rows of nails at the center and ends of the sections,

said strips being secured to the sections 3 in any preferred manner as by means of screws 14, and as long as the strips are secured in position over the nails, said nails will be held from withdrawin from the roofing sections, thereby firmly holding the roof in position on the sheeting It will thus be seen that we have provided a very cheap and economical form of roof, and while we have shown and described the same as employed in connection with car roofs it will be fully understood that it may -be employed for building roofs of any class.

It will further be seen that by providing the gutters water or the like falling on the roof will be readily carried away and that by forming the meeting edges ofthe sections as shown, a water tight joint is formed, and it will further be seen that the sections forming the roof will be positively held in their respective osition and prevented from war 1- ing and, iecoming loosened'by placing t' e metallic strips over the ends of the nails employed for securing the sections to the sheetbut we clalm 1st A- roof of the ty e described, embracing rafters having app ied thereto sheeting, a plurality of roof-sections each provided in its upper surface with a plurality of longitudinal drain-channels or gutters and at one longitudinal edge with a tongue, said roof section 1 also being stepped. fromits general up er surface downwardly at a point a short istance inwardly from said tongue and having what may be termed the thread thereof also provided with a longitudinal drain-channel or gutter and the riser member thereof forming an undercut shoulder, said tread forming the upper surface of said tongue, said roof-section having its opposite longitudinaledge provided with a groove, also with a lip projecting some distance beyond, and over anging said groove and having'its forward 

